Tetrahedron letters

Effect of ether versus ester tethering on Heck cyclizations

SR Woodcock, BP Branchaud

Index: Woodcock, Steven R.; Branchaud, Bruce P. Tetrahedron Letters, 2005 , vol. 46, # 42 p. 7213 - 7215

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Citation Number: 5

Abstract

Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Ether tethers allow Heck cyclizations to proceed in high yields. Ester tethers lead to low yields. Styrene trapping experiments indicate that ester reactions form viable organopalladium intermediates that cannot cyclize efficiently. ... Heck cyclizations 1 to form a six-membered ring were investigated ...